Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Operating Voltage | 5V DC |
| Operating Current | 15mA |
| Operating Frequency | 40kHz |
| Measuring Range | 2cm to 400cm |
| Measuring Angle | 15 degrees |
| Trigger Input Signal | 10uS TTL pulse |
| Echo Output Signal | TTL level signal |
| Module Dimensions | 45mm x 20mm x 15mm |
| Net Weight | 8 grams |
| Interface Type | 4-Pin Header |
Anonymous
Mar 07, 2026
Rating: 5/5
Perfect for Arduino
Works exactly as expected. Easy to wire up with my Uno. Distance readings are consistent within indoor environments.
Anonymous
Feb 27, 2026
Rating: 5/5
Standard HC-SR04 quality
If you know this module, you know what you get. Genuine module, good soldering on the pins.
Anonymous
Feb 27, 2026
Rating: 4/5
Good value
Solid sensor for the price. Had to tweak the code slightly for better accuracy at close range, but overall happy.
Anonymous
Feb 05, 2026
Rating: 5/5
Reliable distance measurement
Bought five of these for a robot car project. All of them functioned perfectly out of the box.
Anonymous
Jan 18, 2026
Rating: 5/5
Great for learning
Great for learning ultrasonic sensing. Just remember it needs 5V logic, not 3.3V directly on some pins.
Q: What is the minimum detection distance?
A: The minimum measurable distance is approximately 2cm. Anything closer may not register accurately.
Q: Does it come with jumper wires?
A: No, this listing is for the module only. Jumper wires are sold separately.
Q: Can I use this outdoors?
A: It can be used outdoors, but wind and temperature may affect accuracy. It is not waterproof.
Q: What library do you recommend for Arduino?
A: The standard NewPing library is highly recommended for better performance than the default example code.
Q: Is this compatible with Raspberry Pi?
A: Yes, but note that the Echo pin outputs 5V. You may need a voltage divider for the GPIO input.
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